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naga_sai_kumar_

Sai Kumar

@naga_sai_kumar_
5.0(1)
India
English, Hindi, Telugu
About me
I'm a full-stack developer specializing in the MERN stack (MongoDB, ExpressJS, ReactJS, NodeJS). I've built a variety of projects, including a real-time chat app with video/audio calling, an AI-powered fitness app with personalized workouts and diet plans, and a social media platform with user authentication and interactive posts. My expertise lies in creating responsive, scalable web applications with clean code and user-friendly designs. I'm passionate about turning ideas into functional, impactful solutions.... Read more

Skills

n
naga_sai_kumar_
Sai Kumar
Offline • 
Average response time: 1 hour

See my services

Custom Websites
I will provide website development with mern, nextjs and nestjs
5.0(1)
From$80 / projectMore details
Bug Fixes
I will fix and debug issues in your reactjs, nextjs, or nodejs application
From$15 / projectMore details

Portfolio

Work experience

MeetMux

Backend Developer

MeetMux • Full-time

Jun 2025 - Aug 2026 • 1 yr 2 mos

Worked as a Backend Developer building scalable web applications and backend systems using Node.js, NestJS, Express, PostgreSQL, Redis, gRPC, and BullMQ. Developed features including authentication systems, recommendation engines, real-time analytics, AI-powered processing pipelines, job eligibility systems, and high-volume application workflows. Built and optimized an online examination platform supporting up to 10,000 concurrent examinations and improved API response times by 35% through Redis caching and database query optimization. Experienced in designing reliable APIs, database schemas, microservices, asynchronous processing systems, and scalable backend architectures.

1 Reviews
5.0

(1)
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Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
1-1 out of 1 Reviews
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Most relevant
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    sairam20041

    IN

    India

    5

    Very pleased with the delivery! Communication was clear, delivery was on time, and the freelance did a great job understanding what I needed. Will definitely consider them again for future projects.

    $50-$100

    Price

    4 weeks

    Duration

    gig

    Custom Websites

    Helpful?
    Yes
    No